Development of a method for measuring the adherence of protective gloves

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Development of a method for measuring the adherence of protective gloves. There is no standard testing method available for determining the frictional properties of protective gloves, even though this is a crucial property which has a significant impact on the effort exerted by the worker in performing his tasks.

A mechanical testing method has been developed by modifying the TDM-100, a device used to characterize gloves' resistance to cutting; the method allows the measurement of the static and dynamic coefficients of friction of gloves placed in contact with a T-probe. This method was used to characterize the adherence properties of 27 glove models. For three of the gloves, results were also obtained using a biomechanical method requiring that the subject maintains a constant grip force on a dynamometer moving at a constant speed, using the mechanical validation of this biomechanical setup realized with a mechanical pinch device of the dynamometer, and psychophysical tests. Good quantitative agreement was found between the different methods used. Biomechanical measures could not be carried out for one of the glove models. The mechanical method was the only method capable of measuring both the static and dynamic coefficients of all the gloves tested.

The results of these preliminary tests were published in a report by the IRSST, and were covered in a conference proceedings article and in a paper. This work will be carried out as part of a future project with the IRSST in order to improve the mechanical method and to extend the validation of these results to cover a larger number of gloves, in addition to studying the factors affecting adherence in protective gloves. The ultimate goal is to establish a standard proposing a method for characterizing the adherence of protective gloves. The work was conducted in collaboration with researchers working in the Protective Equipment division, as well as ÉTS' Professor Yvan Petit's team.